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Huawei H12-261 Practice Test - Questions Answers, Page 19

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Question 181

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The router data is as follows. Which of the following statements is true?

Question 182

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Which of the following statements regarding LSDB synchronization on an IS-IS broadcast network is true?

Question 183

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Which of the following statements regarding IS-IS authentication are true?

Question 184

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A BGP connection goes down after being successfully set up. What is not possible cause for this problem?

Question 185

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On an OSPF broadcast network, four routers (RTA, RTB, RTC, and RTD) are deployed on the same network segment. The DR priorities of RTA, RTB, RTC, and RTD are 2, 1, 1, and 0 respectively, and router

Question 186

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When a Layer 2 switch sends IP packets originating from one VLAN to another, which of the following fields is rewritten?

Question 187

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Both IS-IS CSNPs and OSPF DD packets describe the brief information about link state databases in MA network. Which of the following statements regarding the two types of packets is true?

Question 188

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Which of the following address prefixes indicates that the address is a globally unique and globally routable IPv6 unicast address, similar to a public IPv4 address?

Question 189

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Which of the following technologies use tunnels to allow for communication between devices with IPv6 addresses?

Question 190

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Synchronization between LDP and IGP suppresses reachable IGP route advertisement to implement network convergence and ensure LDP and IGP are along the same path. This minimizes traffic loss and impr

Question 181

The router data is as follows. Which of the following statements is true?

IS-IS IPv4 and IS-IS IPv6 are enabled on Eth0/0/1 of R3.

Ge0/0/0 of R3 and neighbor routers are in different areas.

R3 is the Level-1 DIS and Level-2 DIS for the link where Eth0/0/0 resides.

The circuit-level of Eth0/0/0/1 on R3 is Level-1-2.

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Question 182

Which of the following statements regarding LSDB synchronization on an IS-IS broadcast network is true?

R2 functions as the DIS and sends Hello PDUs at an interval three times that of non-DIS routers.

R2 functions as the DIS and does not receive PSNPs from other routers.

R2 functions as the DIS and periodically sends CSNPs.

R1 and R3 maintain the LSDB consistency by sending PSNPs periodically.

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Question 183

Which of the following statements regarding IS-IS authentication are true?

After area authentication is configured on a router, IIH PDUs, SNPs, and LSPs sent by the router must carry an authentication TLV.

Interface authentication can authenticate Level-1 and Level-2 Hello PDUs.

After interface authentication is configured on a router, IIH PDUs sent by the router must carry an authentication TLV.

Two routers can establish a neighbor relationship when they are configured with area authentication and interface authentication, respectively, and are configured with the same authentication password.

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Question 184

A BGP connection goes down after being successfully set up.

What is not possible cause for this problem?

Negotiation of parameters in Open packets fails.

Mandatory attributes in Update packets are missing.

Error BGP packets are received.

After the BGP connection is set up, no Keepalive packet is received within the negotiated holdtime.

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Question 185

On an OSPF broadcast network, four routers (RTA, RTB, RTC, and RTD) are deployed on the same network segment. The DR priorities of RTA, RTB, RTC, and

RTD are 2, 1, 1, and 0 respectively, and router IDs are 192.168.1.1, 192.168.3.1, and 192.168.4.1 respectively.

Which router is selected as the BDR if OSPF is enabled on the four routers?

RTC

RTB

RTD

RTA

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Question 186

When a Layer 2 switch sends IP packets originating from one VLAN to another, which of the following fields is rewritten?

Layer 3 TTL

Layer 3 source IP address

Layer 3 transport protocol

Layer 2 TTL

Layer 3 destination IP address

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Question 187

Both IS-IS CSNPs and OSPF DD packets describe the brief information about link state databases in MA network.

Which of the following statements regarding the two types of packets is true?

After CSNPs and DD packets are received by the peer router, the peer router needs to send an acknowledgement message; otherwise, the packets need to be retransmitted.

Once the neighbor relationship is established, CSNPs and DD packets are not sent.

The master/slave relationship in OSPF DD packet exchange is not bound to DR/BDR; and CSNPs are generated only by the DIS.

After CSNPs and DD packets are received by the peer router, the peer router does not need to send an acknowledgment message.

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Question 188

Which of the following address prefixes indicates that the address is a globally unique and globally routable IPv6 unicast address, similar to a public IPv4 address?

::1/128

FE80::/10

FC00::/7

2000::/3

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Question 189

Which of the following technologies use tunnels to allow for communication between devices with IPv6 addresses?

ISATAP

6to4

NAT64

Dual Stack

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Question 190

Synchronization between LDP and IGP suppresses reachable IGP route advertisement to implement network convergence and ensure LDP and IGP are along the same path. This minimizes traffic loss and improves network reliability.

TRUE

FALSE

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Total 298 questions